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1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // csockethandler.cpp |
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15 // |
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16 // |
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17 /** |
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18 @file |
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19 @internalTechnology |
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20 */ |
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21 |
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22 //User include |
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23 #include "csockethandler.h" |
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24 |
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25 #include <mdns/cdnsmessagecomposerparser.h> |
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26 #include <mdns/cdnsmessage.h> |
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27 __FLOG_STMT(_LIT8(KComponent,"MDNSServer");) |
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28 /** |
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29 Two-phase construction method |
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30 @param aSocket Reference to RSocket |
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31 @param aObserver Reference to MSocketHandlerObserver used to notify the client. |
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32 @param aOperation TSocketOperation specfies the operation socket should perform. |
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33 @return a pointer to the requested socket handler object |
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34 */ |
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35 |
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36 CSocketHandler* CSocketHandler::NewL(RSocket& aSocket, MSocketHandlerObserver& aObserver, TSocketOperation aOperation) |
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37 { |
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38 CSocketHandler* self = new (ELeave)CSocketHandler(aSocket, aObserver, aOperation); |
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39 CleanupStack::PushL(self); |
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40 self->ConstructL(); |
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41 CleanupStack::Pop(); |
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42 return self; |
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43 } |
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44 |
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45 |
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46 /** |
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47 Destructor |
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48 */ |
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49 CSocketHandler::~CSocketHandler() |
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50 { |
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51 __FLOG(_L8("CSocketHandler::~CSocketHandler - Entry")); |
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52 Cancel(); |
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53 delete iPacketBuffer; |
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54 __FLOG(_L8("CSocketHandler::~CSocketHandler - Exit")); |
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55 __FLOG_CLOSE; |
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56 } |
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57 |
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58 |
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59 /** |
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60 This to activate the socket to perform either send or recieve based on the operation set. |
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61 @param aParams Reference to TSocketHandlerParams containing operation,packet and address |
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62 @return void |
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63 */ |
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64 void CSocketHandler::Activate ( const TSocketHandlerParams& aParams ) |
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65 { |
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66 __FLOG(_L8("CSocketHandler::Activate - Entry")); |
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67 iOperation = static_cast < TSocketOperation > ( aParams.iArgs[0] ); |
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68 switch ( iOperation ) |
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69 { |
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70 case ESocketSend: |
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71 { |
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72 iPacketPtr.Zero(); |
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73 HBufC8* bufChain = reinterpret_cast < HBufC8* > ( aParams.iArgs[1] ); |
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74 iLength = 0; |
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75 iSocket.Send(*bufChain, KDefaultFlags, iStatus, iLength ); |
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76 } |
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77 break; |
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78 |
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79 case ESocketSendTo: |
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80 { |
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81 iPacketPtr.Zero(); |
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82 RBuf8* bufChain = reinterpret_cast < RBuf8* > ( aParams.iArgs[1] ); |
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83 iSockAddr = *(reinterpret_cast < TSockAddr* > ( aParams.iArgs[2] )); |
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84 iLength = 0; |
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85 iSocket.SendTo ( *bufChain, iSockAddr, KDefaultFlags, iStatus, iLength ); |
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86 } |
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87 break; |
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88 |
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89 case ESocketRecieve: |
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90 { |
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91 iPacketPtr.Zero(); |
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92 iSocket.Recv (iPacketPtr, KDefaultFlags, iStatus ); |
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93 } |
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94 break; |
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95 |
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96 case ESocketRecieveFrom: |
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97 { |
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98 iPacketPtr.Zero(); |
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99 iSocket.RecvFrom ( iPacketPtr, iSockAddr, KDefaultFlags, iStatus ); |
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100 } |
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101 break; |
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102 |
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103 default: |
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104 User::Invariant (); |
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105 }; |
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106 |
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107 SetActive(); |
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108 __FLOG(_L8("CSocketHandler::Activate - Exit")); |
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109 } |
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110 /** |
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111 |
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112 */ |
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113 void CSocketHandler::CompleteSelf ( TInt aError ) |
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114 { |
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115 __FLOG(_L8("CSocketHandler::CompleteSelf - Entry")); |
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116 TRequestStatus* pStat = &iStatus; |
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117 User::RequestComplete ( pStat, aError ); |
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118 SetActive ( ); |
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119 __FLOG(_L8("CSocketHandler::CompleteSelf - Exit")); |
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120 } |
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121 /** |
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122 Constructor |
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123 */ |
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124 CSocketHandler::CSocketHandler(RSocket& aSocket, MSocketHandlerObserver& aObserver, TSocketOperation aOperation):CActive ( EPriorityNormal ),iSocket(aSocket),iObserver(aObserver),iOperation(aOperation),iPacketPtr(NULL,0) |
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125 { |
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126 |
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127 } |
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128 /** |
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129 Constructs a heap to hold the packet of almost 9k size |
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130 */ |
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131 void CSocketHandler::ConstructL() |
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132 { |
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133 __FLOG_OPEN(KMDNSSubsystem, KComponent); |
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134 __FLOG(_L8("CSocketHandler::ConstructL - Entry")); |
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135 // Allocate a 9K buffer to contain the biggest mDNS packet allowable |
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136 iPacketBuffer = HBufC8::NewL(KMaxDnsPacketSize); |
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137 iPacketPtr.Set(iPacketBuffer->Des()); |
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138 CActiveScheduler::Add(this); |
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139 __FLOG(_L8("CSocketHandler::ConstructL - Exit")); |
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140 } |
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141 |
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142 /** |
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143 cancels the current operation |
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144 */ |
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145 void CSocketHandler::CancelCurrent() |
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146 { |
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147 __FLOG(_L8("CSocketHandler::CancelCurrent - Entry")); |
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148 switch ( iOperation ) |
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149 { |
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150 case ESocketSend: |
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151 case ESocketSendTo: |
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152 iSocket.CancelSend (); |
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153 break; |
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154 |
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155 case ESocketRecieve: |
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156 case ESocketRecieveFrom: |
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157 iSocket.CancelRecv (); |
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158 break; |
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159 |
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160 }; |
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161 __FLOG(_L8("CSocketHandler::CancelCurrent - Exit")); |
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162 } |
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163 /** |
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164 Notifies the client with parameters based on the operation. |
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165 a. Returns the packet and addres for recieve operation. |
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166 b. returns only length of data send for send operation. |
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167 */ |
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168 void CSocketHandler::NotifyCompletionL( ) |
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169 { |
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170 __FLOG(_L8("CSocketHandler::NotifyCompletionL - Entry")); |
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171 switch ( iOperation ) |
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172 { |
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173 case ESocketSend: |
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174 { |
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175 iObserver.OnCompletionL(iPacketPtr,NULL,iLength()); |
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176 break; |
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177 } |
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178 |
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179 case ESocketSendTo: |
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180 { |
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181 iObserver.OnCompletionL(iPacketPtr,iSockAddr,iLength()); |
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182 break; |
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183 } |
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184 |
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185 case ESocketRecieve: |
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186 case ESocketRecieveFrom: |
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187 { |
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188 |
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189 iObserver.OnCompletionL(iPacketPtr,iSockAddr,iLength()); |
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190 break; |
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191 } |
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192 |
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193 }; |
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194 __FLOG(_L8("CSocketHandler::NotifyCompletionL - Exit")); |
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195 } |
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196 /** |
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197 Notifies the client after the send or recieve |
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198 //Derived from CActive |
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199 */ |
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200 void CSocketHandler::RunL() |
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201 { |
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202 __FLOG(_L8("CSocketHandler::RunL - Entry")); |
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203 TInt err = iStatus.Int (); |
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204 if ( err == KErrNone ) |
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205 { |
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206 NotifyCompletionL(); |
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207 } |
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208 else |
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209 { |
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210 iObserver.OnError ( err ); |
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211 } |
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212 __FLOG(_L8("CSocketHandler::RunL - Exit")); |
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213 } |
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214 |
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215 |
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216 /** |
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217 Derived from CActive |
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218 Cancellation of an outstanding request. |
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219 */ |
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220 void CSocketHandler::DoCancel() |
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221 { |
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222 __FLOG(_L8("CSocketHandler::DoCancel - Entry")); |
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223 CancelCurrent (); |
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224 __FLOG(_L8("CSocketHandler::DoCancel - Exit")); |
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225 } |
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226 |
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227 |
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228 |
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229 /** |
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230 Handles any leave from the RunL |
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231 @param aError Error with which Runl leaves |
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232 @return error |
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233 */ |
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234 TInt CSocketHandler::RunError(TInt /*aError*/) |
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235 { |
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236 __FLOG(_L8("CSocketHandler::RunError - Entry")); |
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237 //__ASSERT_DEBUG(aError,User::Invariant()); |
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238 //Ignore any leave from RSocket |
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239 __FLOG(_L8("CSocketHandler::RunError - Exit")); |
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240 return KErrNone; |
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241 } |